Convection Heaters. Type XB. Product Description. Selection of Temperature Code. Construction and Installation. Special Wattage and Lengths

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1 Product Description The XB, with ratings up to 5000 watts, is designed for heating spaces where explosive substances are or may be present. The XB is available with either CSA C/US or CE/ATEX approvals. All units can be fitted with an externally adjustable thermostat. With the XB, you get a safe and reliable heater with a handsome appearance and state-of-the-art design. Typical applications of the XB include: Control cabinets and small enclosures Storage rooms for paints and cleaners Grain elevators Flour mills Spray booths Gas plants Pump houses Marine and offshore Oil platforms Cleaning and dyeing plants Selection of Temperature Code Refer to the atmospheric condition table at the beginning of this section for detailed selection data for the temperature code. To minimize cost and physical size of the heater, select the heater with the highest temperature code that suits the environment. In tables 7 and 8 a check mark ( ) under the temperature code indicates that the surface temperature of the heater will not exceed the coded value listed in the atmospheric conditions table at the beginning of this section. Construction and Installation The XP and XB explosion-proof convection heaters utilize CCI s unique copper free aluminum extruded convector and patented x-max terminal housing. Large convector surface area and high mass fins ensure safe and efficient low temperature heat transfer to the environment. Convectors are black anodized to resist oxidation and maximize heat transfer. The x-max housing can be equipped with multiple tapped conduit entries throughout its length to facilitate installation. A track and trolley system and threaded covers at each end allow easy access to internal components. All units, except the single heat sink units, have a built-in terminal block for simplified electrical connection. XB units are intended for wall or floor mounting with the heater positioned vertically as shown. Dual purpose brackets for floor or wall mounting and wire guards are supplied as standard. Special Wattage and Lengths The following table lists the maximum design wattages for the four standard heat sink lengths and configurations. If standard units listed in Table 12 do not suit your application, a special unit based on Table 13 can be supplied (check factory). 14

2 Convection Heaters FIGURE 7 XB Single Unit (XB1-) FIGURE 8 XB Double Unit (XB2-) FIGURE 9 XB Triple Unit (XB3-) FIGURE 10 XB Quadruple Unit (XB4-) 184 mm (7-1/4 in.) 410 mm (16-1/8 in.) 635 mm (25 in.) 860 mm (33-7/8 in.) L FIGURE 11 XB Side View Floor Mounting 205 mm (8 in.) FIGURE 12 XB Side View Wall Mounting Note: All units are shown with optional thermostat kit installed. 97 mm (3-13/16 in.) or 32 mm (1-1/4 in.) Thermostat well with sensing bulb 89mm (3-1/2 in.) TABLE 8 XB Explosion-Proof Convection Heaters - Standard XB Heaters Watts Standard Voltages Ø 1Ø 3Ø 1Ø 3Ø 1Ø 3Ø 1Ø 3Ø 'L' Dimension mm (in.) Temperature Code T2D T3B T4A T6 Weight lbs (kg) Part # Class I Division 1, 2 Group A, B, C & D Class II Division 1, 2 Group E, F & G Class III Division 1 Class I Division 1 Group A, B, C & D (10.0) (4.5) - XB1-1047T2D (16.7) (6.8) - XB1-3075T2D (23.4) (9.1) - XB1-4100T2D (30.1) (11.3) - XB1-6125T2D (16.7) (13.6) - XB2-3150T2D (23.4) (18.1) - XB2-4200T2D (23.4) (27.2) - XB3-4300T2D (30.1) (34.0) - XB3-6375T2D (30.1) (45.4) - XB4-6450T2D 15

3 TABLE 9 XB Explosion-Proof Convection Heaters - Other Available XB Heaters Watts Standard Voltages Ø 1Ø 3Ø 1Ø 3Ø 1Ø 3Ø 1Ø 3Ø 'L' Dimension Temperature Code mm (in.) T2D T3B T4A T6 Weight lbs (kg) Part # Class I Division 1, 2 Group A, B, C & D Class II Division 1, 2 Group E, F & G Class I Division 1, 2 Class III Division 1 Group A, B, C & D (10.0) 10 (4.5) XB1-1005T (10.0) - 10 (4.5) XB1-1010T4A (10.0) - 10 (4.5) XB1-1017T4A (30.1) 25 (11.3) XB1-6020T (10.0) (4.5) XB1-1030T3B (30.1) 50 (22.7) XB2-6040T (30.1) - 25 (11.3) XB1-6045T4A (16.7) (6.8) XB1-3047T3B (30.1) 75 (34.0) XB3-6060T (10.0) (9.1) - XB2-1075T2D (30.1) 100 (45.4) XB4-6080T (30.1) - 50 (22.7) XB2-6085T4A (10.0) (13.6) - XB3-1100T2D (23.4) (18.1) XB2-4100T3B (16.7) (20.4) XB3-3100T3B (30.1) - 75 (34.0) XB3-6125T4A (10.0) (13.6) - XB3-1125T2D (30.1) (11.3) - XB1-6135T2D (10.0) (18.1) - XB4-1150T2D (23.4) (27.2) XB3-4150T3B (30.1) (22.7) XB2-6150T3B (30.1) (45.4) XB4-6160T4A (16.7) (20.4) - XB3-3200T2D (23.4) (36.3) XB4-4225T3B (30.1) (34.0) XB3-6225T3B (16.7) (27.2) - XB4-3250T2D (30.1) (22.7) - XB2-6250T2D (30.1) (45.4) XB4-6300T3B (23.4) (36.3) - XB4-4375T2D (30.1) (45.4) - XB4-6500T2D 16

4 Convection Heaters TABLE 10 XB Maximum Heater Wattages Heat Sink Temperature Code Length Type T2D T3B T4A T6 130 mm XB XB XB XB mm XB XB XB XB mm XB XB XB XB mm XB XB XB XB Thermostats CCI offers a wide variety of explosion-proof thermostats to suit most every need. All model XB heaters can be fitted with integral line voltage thermostats which are available either externally adjustable or tamper-proof; factory installed or as field installed kit. Remote thermostat mounting is also available. Refer to page 23 of this Norseman section when selecting the appropriate thermostat for the desired application. Accessories Wire Guards and Baffles All units are equipped with wire guards. Gull wing shaped bright aluminum rear baffles are standard with XB units rated for T2D temperature code (shipped separately). XB CE / ATEX Explosion-Proof Convection Heater Standard Features Suitable for the following hazardous location classification: EX II 2 G, EExd IIC T3 OR T4 (See Table 11) High surface area black anodized heat emitter with integral tubular heating elements Patented x-max housing with slide out terminal block trolley simplifies installation and servicing Nickel plated wire guards on all models Universal support leg for wall or floor mounting 17

5 TABLE 11 XB CE / ATEX Explosion-Proof Convection Heater Specifications for T3 and T4 Units - Hazardous Location Rating Fig. 'L' Dim. Approx. Weight Catalog Watts No. Volts Phase mm (in.) kg (lbs) No. T-Class XB1-3040T3B T XB1-3047T3B T (16.7) 6.8 (15) XB1-3040T3B T XB1-3043T3B T XB1-3047T3B T XB2-4084T3B T XB2-4100T3B T (23.4) 18.1 (40) XB2-4084T3B T XB2-4092T3B T XB2-4100T3B T XB3-4126T3B T XB3-4150T3B T (23.4) 27.2 (60) XB3-4126T3B T XB3-4138T3B T XB3-4150T3B T XB2-6071T4B T (30.1) 22.7 (50) XB2-6078T4B T XB2-6085T4B T XB3-6189T3B T (30.1) 34.0 (75) XB3-6207T3B T XB3-6225T3B T XB3-4210T3B T (23.4) 27.2 (60) XB3-4230T3B T XB3-4250T3B T XB3-6252T3B T (30.1) 34.0 (75) XB3-6276T3B T XB3-6300T3B T XB3-4126T3B T (23.4) 27.2 (60) XB3-4138T3B T XB3-4150T3B T XB3-6189T3B T (30.1) 34.0(75) XB3-6207T3B T XB3-6225T3B T XB3-4210T3B T (23.4) 27.2 (60) XB3-4230T3B T XB3-4250T3B T XB3-6252T3B T (30.1) 34.0 (75) XB3-6276T3B T XB3-6300T3B T3 18